KR20210041375A - Intelligent accel pedal apparatus for hybrid vehicle and operating control method thereof - Google Patents

Abstract

The present invention relates to an intelligent accelerator pedal device for a hybrid vehicle and an operation control method thereof. Through a simple configuration using a pedal effort generating mechanism (100), a solenoid (200), and a stopper (400) provided in a pedal pad (2), a tactile signal according to an increase in the pedal effort can be transmitted to a driver. The driver controls the operation of the accelerator pedal through a tactile signal based on the increased pedal effort to maintain an EV mode, thereby improving fuel efficiency.

Description

Intelligent accelerator pedal device for hybrid vehicles and its operation control method {INTELLIGENT ACCEL PEDAL APPARATUS FOR HYBRID VEHICLE AND OPERATING CONTROL METHOD THEREOF}

The present invention relates to an intelligent accelerator pedal device for a hybrid vehicle and an operation control method thereof, and more particularly, to a tactile signal from a driver by increasing the foot power of the accelerator pedal at a time point at which the EV mode is switched to the HEV mode or just before the switch is made. This is a technology related to an intelligent accelerator pedal device for a hybrid vehicle capable of transmitting a signal and an operation control method thereof.

Vehicles are equipped with an accelerator pedal operated by the driver with their feet, and in recent years, development of an intelligent accelerator pedal that transmits a tactile signal to the driver through the accelerator pedal is accelerating when there is a risk of deteriorating fuel economy or a collision situation.

The tactile signals provided by the intelligent accelerator pedal to the driver include a haptic signal using a motor, a vibration signal, a sense of moderation signal, and a foot pressure signal.

However, the conventional intelligent accelerator pedal has a disadvantage in that the device for providing a tactile signal to the driver uses an actuator and a controller such as an expensive motor, and the unit cost is high.In particular, the configuration is complicated due to the large number of parts, and the weight is excessively increased. There is a drawback that causes it.

The matters described as the background art are only for enhancing an understanding of the background of the present invention, and should not be taken as acknowledging that they correspond to the prior art already known to those of ordinary skill in the art.

Korean Patent Publication No. 10-2013-0064918

The present invention is an intelligent accelerator pedal device mounted on a hybrid vehicle capable of implementing an EV mode, and is a configuration capable of transmitting a tactile signal according to an increase in foot power to the driver through a simple configuration using a solenoid and a stopper, thereby reducing weight and Its purpose is to enable cost reduction.

In addition, the present invention is a configuration in which a tactile signal is transmitted from the driver through an increase in the foot pressure of the accelerator pedal at the point of transition from the EV mode to the HEV mode or the point immediately before the transition. There is a different purpose in helping to help improve it.

The present invention for achieving the above object is an intelligent accelerator pedal device for a hybrid vehicle including a pedal housing and a pedal pad rotatably coupled to the pedal housing, while being provided on the pedal pad, protruding toward the pedal housing. Foot pressure generating mechanism; A solenoid installed on one side of the pedal housing; A push rod protruding toward the foot force generating mechanism when voltage is applied to the solenoid; And a stopper coupled to the push rod. During the protruding operation of the push rod, the stopper moves downward of the foot force generating mechanism to contact the foot force generating mechanism.

The stepping force generating mechanism and the stopper are formed with inclined surfaces in contact with each other; When the push rod is protruded, the inclined surface of the stepping force generating mechanism and the inclined surface of the stopper are in surface contact with each other.

Each of the stepping force generating mechanism and the stopper is formed with an inclined surface; The inclined surface of the step-force generating mechanism and the inclined surface of the stopper are formed with irregularities for preventing slipping, respectively; When the push rod is protruded, the unevenness formed on the inclined surface of the stepping force generating mechanism and the unevenness formed on the inclined surface of the stopper contact each other.

A spring plate coupled to one end of the push rod; And a return spring that is installed to support both ends of the solenoid and the spring plate and moves the push rod retreat through an elastic restoring force when the voltage of the solenoid is cut off.

The foot force generating mechanism is a fixed housing connected to the pedal pad and formed to have an open bottom; A movable housing which is partially inserted into the fixed housing and is movable along the longitudinal direction of the fixed housing, opens upward, and has an inclined bottom surface; And a foot spring installed to be located inside the fixed housing and the moving housing to provide an elastic force so that the moving housing protrudes from the fixed housing.

The pedal force generating mechanism includes a damper coupled to an upper portion of the fixed housing; And a spring support block installed below the inside of the movable housing. The foot spring is characterized in that it is installed to support both ends of the damper and the spring support block.

The foot force generating mechanism transmits a tactile signal according to an increase in foot force to the driver when it contacts the stopper, and performs a function of a kick-down switch by contacting the pedal housing when the stopper does not contact.

In addition, a method for controlling an operation of an intelligent accelerator pedal device for a hybrid vehicle according to the present invention includes: a first determining step of determining whether a drive mode is an Eco mode in a driving situation in an EV mode; A second judgment step of determining a time point of transition from the EV mode to the HEV mode in the eco mode; A third judging step of determining whether the stroke of the accelerator pedal is within the normal operating range at the time of switching from the EV mode to the HEV mode; And when it is determined that the stroke of the accelerator pedal is within the normal operating range, a voltage is applied to the solenoid so that the stopper comes into contact with the foot force generating mechanism, thereby transmitting the increased foot force to the driver as a tactile signal when the driver's pedal pad is operated. It characterized in that it includes; increasing step.

In the second determination step, the HCU determines a time point of transition from the EV mode to the HEV mode; The HCU is characterized in that it determines from a time point at which the engine starts to be switched to the HEV mode, or from a point immediately before the engine starts to be the point at which to switch to the HEV mode.

In the third determination step, the stroke of the accelerator pedal is determined using the signal of the APS; If the stroke of the accelerator pedal is in the range of 10% to 70%, it is determined as a normal operating range; If the stroke of the accelerator pedal is less than 10% or exceeds 70%, it is determined as an abnormal operation range; When it is determined as the abnormal operation range, the voltage is not applied to the solenoid.

And a fourth determination step of determining a stroke of the accelerator pedal after the step of increasing the foot pressure; When it is determined that the stroke of the accelerator pedal is reduced in the fourth determination step, control is performed so that no voltage is applied to the solenoid while maintaining the driving in the EV mode; In the fourth determination step, when it is determined that the stroke of the accelerator pedal is maintained or increased, the EV mode is changed to the HEV mode, and the voltage is continuously applied to the solenoid.

The intelligent accelerator pedal device according to the present invention is a configuration capable of transmitting a tactile signal according to an increase in foot power to the driver through a simple configuration using a foot force generating mechanism provided in a pedal pad, a solenoid and a stopper, thereby reducing weight and reducing cost. There is an effect that can promote.

In addition, the intelligent accelerator pedal device according to the present invention is mounted on a hybrid vehicle equipped with a motor to generate additional foot pressure of the accelerator pedal at the point when the hybrid vehicle is switched from the EV mode to the HEV mode or just before the transition. Through the control of the accelerator pedal operation by transmitting a tactile signal to the driver through increased foot pressure, fuel efficiency can be greatly improved by inducing the driver to maintain the EV mode.

1 is a schematic configuration diagram of an intelligent accelerator pedal device according to the present invention,
Figure 2 is a front view of Figure 1,
3 is a rear view of a state in which the pedal housing is removed from FIG. 2
4 is a view of a state in which the pedal pad rotates in FIG. 3 and the intelligent accelerator pedal device according to the present invention is operated;
5 is a view for explaining the pedal force generating mechanism according to the present invention,
6 is a view for explaining a solenoid and a stopper according to the present invention,
7 is a view for explaining the inclined surfaces and irregularities formed on the moving housing and the stopper according to the present invention;
8 and 9 are block diagrams and flow charts for explaining an operation control method of an intelligent accelerator pedal device according to the present invention.

Hereinafter, an intelligent accelerator pedal device for a hybrid vehicle and an operation control method thereof according to a preferred embodiment of the present invention will be described with reference to the accompanying drawings.

A control unit (controller) according to an exemplary embodiment of the present invention includes an algorithm configured to control the operation of various components of a vehicle or a nonvolatile memory (not shown) configured to store data related to a software command for reproducing the algorithm, and It may be implemented through a processor (not shown) configured to perform an operation described below using data stored in the corresponding memory. Here, the memory and the processor may be implemented as individual chips. Alternatively, the memory and processor may be implemented as a single chip integrated with each other. The processor may take the form of one or more processors.

There are two types of accelerator pedals: a pendant type mounted on the dash panel and an organ type mounted on the floor panel, depending on the mounting structure.

The pendant type accelerator pedal has a structure in which the pedal housing is fixedly installed on the dash panel constituting the vehicle body, and the organ type accelerator pedal has the pedal housing fixedly installed on the floor panel constituting the vehicle body.

In the embodiment according to the present invention, an organ type accelerator pedal is described as an embodiment.

As shown in Fig. 1, in the case of an organ-type accelerator pedal, the pedal housing 1 is fixedly installed on the floor panel constituting the vehicle body, and the pedal housing 1 has a pedal pad that rotates relative to the pedal housing 1 by the driver's operation. (2) is combined.

In the case of the pendant-type accelerator pedal, a pedal arm operated by the driver's foot is combined instead of the pedal pad.

A pedal arm (3) is rotatably coupled to the pedal housing (1), and the pedal pad (2) and the pedal arm (3) are connected through a connecting rod (4), and a pedal is used to return the pedal arm (3). The arm spring (5) is installed to be supported by the pedal arm (3).

In addition, the pedal housing 1 is coupled with an APS (accelater position sensor) (20) that detects the rotation angle of the pedal arm (3) and transmits a signal to the controller (10).

When the driver manipulates the pedal pad (2), the pedal arm spring (5) is compressed by the rotation of the pedal arm (3), and the compression force of the pedal arm spring (5) is transmitted to the driver through the pedal pad (2). Therefore, the elastic force of the pedal arm spring 5 becomes the basic pedal effort.

According to an embodiment of the present invention, when there is a possibility that a fuel economy deterioration situation may occur while driving a vehicle, a tactile signal is transmitted to the driver by increasing the foot power of the accelerator pedal, and the driver controls the operation of the accelerator pedal through a tactile signal according to an increase in foot power. By doing so, it is characterized by a configuration that can improve fuel economy.

The intelligent accelerator pedal device according to the present invention for implementing this is provided integrally on the bottom surface of the pedal pad 2 as shown in FIGS. 1 to 7 and a foot force generating mechanism protruding downward toward the pedal housing 1. (100), a solenoid (200) located at one side of the pedal housing (1) and fixedly installed on the floor panel constituting the vehicle body, a push rod protruding toward the foot pressure generating mechanism (100) when voltage is applied to the solenoid (200) (300), it includes a stopper 400 coupled to one end of the push rod 300 facing the foot force generating mechanism (100).

When a voltage is applied to the solenoid 200 under the control of the controller 10, the push rod 300 protrudes toward the foot force generating mechanism 100, and a stopper coupled to the front end of the push rod 300 When the push rod 300 protrudes, the 400 moves downward of the pedal force generating mechanism 100, and at this time, when the driver manipulates the pedal pad 2 with his foot and rotates it (arrow R1 in FIG. 4), the pedal housing ( By the pedal pad 2 rotating toward 1), the foot force generating mechanism 100 provided on the bottom of the pedal pad 2 comes into contact with the stopper 400 (see FIGS. 3 and 4).

When the driver steps on the pedal pad 2 and the step-force generating mechanism 100 and the stopper 400 come into contact, the additional foot force through the foot-force generating mechanism 100 in addition to the basic foot force by the pedal arm spring 5 is more. As a result, the driver can receive a tactile signal according to an increase in foot power through the pedal pad 2, and the driver can improve fuel economy by controlling the operation of the accelerator pedal through the tactile signal according to the increase in foot power. will be.

As described above, the intelligent accelerator pedal device of the embodiment according to the present invention provides the driver with a simple configuration using the foot pressure generating mechanism 100 provided in the pedal pad 2 and the solenoid 200 and the stopper 400. As a configuration capable of transmitting a tactile signal, there is an advantage of achieving weight reduction and cost reduction through this.

The step-force generating mechanism 100 and the stopper 400 of the embodiment according to the present invention are formed with inclined surfaces 121 and 411 in contact with each other, and the inclined surface 121 of the foot-force generating mechanism 100 when the push rod 300 protrudes. ) And the inclined surface 411 of the stopper 400 are in surface contact with each other to increase the contact area.

The reason why the contact surface between the foot pressure generating mechanism 100 and the stopper 400 is formed as inclined surfaces 121 and 411 is to allow smooth movement without interfering with each other when the stopper 400 moves below the foot force generating mechanism 100 In addition, it is to ensure that the stopper 400 is smoothly exited without interference even when the stopper 400 exits from the foot pressure generating mechanism 100 in a state in which the inclined surfaces 121 and 411 are in contact with each other.

As another example, when the foot pressure generating mechanism 100 and the stopper 400 make surface contact with each other on the inclined surfaces 121 and 411, there is a risk of slipping from each other on the inclined surfaces 121 and 411 when the pedal pad 2 is manipulated. When it occurs, it may be difficult to generate additional foot pressure through the foot force generating mechanism 100, and in order to prevent this, the inclined surface 121 of the foot force generating mechanism 100 and the inclined surface 411 of the stopper 400 are prevented from slipping. The irregularities 122 and 412 are formed respectively, and when the push rod 300 protrudes, the irregularities 122 formed on the inclined surface 121 of the pedal effort generating mechanism 100 and the irregularities formed on the inclined surface 411 of the stopper 400 ( 412) It could be a structure in which they are in contact with each other.

In an embodiment according to the present invention, the spring plate 500 coupled to one end (end opposite to the stopper) of the push rod 300, and the solenoid 200 and the spring plate 500 are installed to support both ends of the solenoid ( It further includes a return spring 600 for retreating the push rod 300 through an elastic restoring force when the voltage applied to 200 is cut off.

As the voltage is applied to the solenoid 200, the spring plate 500 also moves when the push rod 300 protrudes toward the foot force generating mechanism 100, and at this time, the return spring 600 is compressed. , When the voltage applied to the solenoid 200 is cut off, the compressed return spring 600 is restored, and at this time, the push rod 300 moves backward, through which the stopper 400 moves away from the foot pressure generating mechanism 100. Will move in the direction.

The foot force generating mechanism 100 is a fixed housing 110 connected to the bottom of the pedal pad 2 and formed to have an open bottom, and a part is inserted into the fixed housing 110 to move along the longitudinal direction of the fixed housing 110 It is possible and is open upwards and is installed so as to be located inside the moving housing 120 formed with an inclined surface 121, the fixed housing 110, and the moving housing 120 so that the moving housing 120 is fixed to the housing 110. It includes a foot spring 130 that provides an elastic force so as to protrude from, a damper 140 coupled above the inside of the fixed housing 110, and a spring support block 150 installed below the inside of the movable housing 120. do.

The fixed housing 110 may be integrally formed on the bottom of the pedal pad 2, and may further include a separation preventing structure that prevents the movable housing 120 from being completely removed from the fixed housing 110.

When the foot force generating mechanism 100 and the stopper 400 contact each other, the moving housing 120 moves to be inserted into the fixed housing 110 (the moving housing moves upward along the fixed housing toward the pedal pad) , At this time, the foot spring 130 is compressed, and the compression force of the foot spring 130 becomes the additional foot force.

Therefore, when the driver's pedal pad 2 is operated, the basic foot force by the pedal arm spring 5 and the additional foot force by the foot force spring 130 are simultaneously transmitted as a tactile signal through the pedal pad 2, and the foot force is increased. The fuel economy can be improved as the driver controls the operation of the accelerator pedal through the tactile signal according to this.

The foot spring 130 is installed so that one end of the upper end is supported by the damper 140 and the other end of the lower end is supported by the spring support block 150, and the damper 140 has an elastic force of the foot spring 130 2) It is installed to reduce noise while preventing direct impact on, and the spring support block 150 prevents the lower end of the foot spring 130 from sliding in direct contact with the inclined surface 121 of the moving housing 120. It becomes a part that acts as a spring plate installed to prevent it.

The foot force generating mechanism 100 according to the present invention transmits a tactile signal according to an increase in foot force to the driver when it comes into contact with the stopper 400, and when it does not contact the stopper 400, it kicks down by contact with the pedal housing 1 Since the function of the switch (kick down switch) is performed, it is possible to implement the function of the kick down switch by using a single foot force generating mechanism 100, so that there is an advantage that it is possible to reduce the cost by reducing the number of parts. .

The intelligent accelerator pedal device according to an embodiment of the present invention is installed in a hybrid vehicle equipped with a motor, and increases the additional effort of the accelerator pedal at a time point at which the EV mode is switched to the HEV mode or just before the switch is performed. Through this, the driver transmits a tactile signal and induces the driver to maintain the EV mode, thereby helping to improve fuel economy.

A hybrid vehicle is a vehicle that is driven by using one or more different power sources, and a general hybrid vehicle refers to a vehicle equipped with an engine that uses fossil fuel to obtain power and an electric motor that is driven by electricity.

Among hybrid vehicles equipped with a motor, a TMED (Transmission Mounted Electric Device) type hybrid vehicle in which the motor is mounted on the transmission side has an engine clutch installed between the engine and the motor.

The engine clutch is a device that connects or cuts off the power between the engine and the transmission according to the driving conditions of the hybrid vehicle. When switching to the HEV mode (including the PHEV mode. Hybrid driving mode), the engine and the motor are connected and the EV is connected. When switching to the mode (electric vehicle driving mode), the connection between the engine and the motor is cut off.

For example, when starting and driving at a low speed, power from the engine is not used (in the engine stop state) and power is transmitted to the transmission only with the driving power of the motor, so there is no need for power connection between the engine and the transmission. Accordingly, the hybrid vehicle is in the EV mode. You will drive by.

However, during high-speed driving, acceleration, and climbing, the power between the engine and the transmission must be transmitted so that the motor and the engine can generate driving force together. Accordingly, the hybrid vehicle runs in the HEV mode (PHEV mode).

In a hybrid vehicle, a hybrid control unit (HCU) determines the HEV mode or the EV mode.

Hereinafter, an operation control method of an intelligent accelerator pedal device according to the present invention will be described with reference to FIGS. 8 to 9.

The signals of the APS 20 coupled to the accelerator pedal and the HCU 30 and the drive mode button 40 provided in the hybrid vehicle are all transmitted to the controller 10, and the controller 10 includes the APS 20 and the HCU 30. ) And the drive mode button 40 to control the operation of the solenoid 200. That is, the solenoid controls whether or not voltage is applied.

The drive mode button 40 provided in the hybrid vehicle is a signal for changing the drive mode to a normal mode, a sports mode, or an eco mode when the driver operates. Can be sent out.

The controller 10 may be described as an integrated controller of a vehicle including a body control module (BCM).

When driving is started after the hybrid vehicle is started (ON) (step S1), the HCU 30 determines whether driving in the HEV mode or in the EV mode (step S2), and in the situation of driving in the EV mode, the controller ( 10) determines whether the drive mode of the current vehicle is an Eco mode (step S3).

The intelligent accelerator pedal device according to the present invention is operated only in an eco mode that prioritizes fuel economy, and is not operated in a normal mode and a sports mode other than other fuel economy priority modes.

When it is determined that the eco mode is in step S3, the HCU 30 determines the time point of transition from the EV mode to the HEV mode (step S4).

The criterion for determining when the HCU 30 switches from the EV mode to the HEV mode is determined from the time when the engine starts to switch to the HEV mode, or the time just before the engine starts (approximately The timing of switching to HEV mode can be determined from 90% or more just before the engine starts running.

If it is determined in step S4 that the HCU 30 is the time point to switch to the HEV mode, the controller 10 determines whether the stroke of the accelerator pedal is within the normal operating range using the signal of the APS 20. (Step S5)

The stroke of the accelerator pedal is 0% when the driver does not operate the pedal pad 2, and the state when the driver operates the pedal pad 2 and rotates it completely (full stroke). define.

In the case of the accelerator pedal, the kick-down function must be implemented at 70% of the stroke, and for this reason, the stroke is judged as a normal operating range of 10% to 70%, and abnormal operation when the stroke of the accelerator pedal is less than 10% or exceeds 70%. It is judged by the range.

If the stroke of the accelerator pedal is less than 10%, the pedal pad 2 rotates but does not affect the acceleration of the vehicle. If the stroke of the accelerator pedal exceeds 70%, it is an emergency or emergency situation at the driver's will. It can be seen as an acceleration situation.

Therefore, when the stroke of the accelerator pedal is in the abnormal operating range, the voltage is not applied to the solenoid 200 by the control of the controller 10, so that the additional foot force by the foot force generating mechanism 100 is not generated.

When it is determined in step S5 that the stroke of the accelerator pedal is within the normal operating range, a voltage is applied to the solenoid 200 by the control of the controller 10 (step S6), and the push rod 300 is the pedal force generating mechanism 100 It moves to protrude toward, and the stopper 400 coupled to the push rod 300 moves to the bottom of the foot force generating mechanism 100, and at this time, the foot force generating mechanism ( 100) comes into contact with the stopper 400.

From the moment the foot force generating mechanism 100 comes into contact with the stopper 400, additional foot force by the foot force spring 130 is further generated (step S7), and the driver has the basic foot force and foot force spring by the pedal arm spring 5 ( 130) is transmitted as a tactile signal through the pedal pad 20, and the driver controls the operation of the accelerator pedal through a tactile signal according to an increase in the foot force.

When the driver controls the operation of the accelerator pedal by receiving the tactile signal due to the increased foot pressure, the controller 10 determines the stroke change of the accelerator pedal using the signal from the APS 20 (step S8), at this time When it is determined that the stroke of the accelerator pedal is reduced, it is controlled so that the voltage is not applied to the solenoid 200 while maintaining the driving in the EV mode (step S9), and when it is determined that the stroke of the accelerator pedal is maintained or increased. The EV mode is changed to the HEV mode, and the voltage is continuously applied to the solenoid 200 (step S10).

As described above, the intelligent accelerator pedal device according to the present invention provides the driver with a simple configuration using the foot pressure generating mechanism 100 provided in the pedal pad 2 and the solenoid 200 and the stopper 400. As a configuration capable of transmitting a tactile signal, there is an advantage of achieving weight reduction and cost reduction through this.

In addition, the intelligent accelerator pedal device according to the present invention is mounted on a hybrid vehicle equipped with a motor to generate additional foot pressure of the accelerator pedal at the point when the hybrid vehicle is switched from the EV mode to the HEV mode or just before the transition. Through the control of the accelerator pedal operation by transmitting a tactile signal to the driver through increased foot pressure, fuel efficiency can be greatly improved by inducing the driver to maintain the EV mode.

Although the present invention has been illustrated and described in connection with specific embodiments, it is understood in the art that the present invention can be variously improved and changed within the scope of the technical spirit of the present invention provided by the following claims. It will be obvious to those of ordinary skill.

1-Pedal housing 2-Pedal pad
3-pedal arm 4-connecting rod
5-Pedal arm spring 10-Controller
20-APS 30-HCU
40-Drive mode button 100-Foot pressure generating mechanism
110-Fixed housing 120-Mobile housing
121,411-Slope 122,412-Uneven
130-foot spring 140-damper
150-Spring Support Block 200-Solenoid
300-push rod 400-stopper
500-Spring plate 600-Return spring

Claims (11)

In the intelligent accelerator pedal device for a hybrid vehicle comprising a pedal housing and a pedal pad rotatably coupled to the pedal housing,
A pedal force generating mechanism provided on the pedal pad and protruding toward the pedal housing;
A solenoid installed on one side of the pedal housing;
A push rod protruding toward the foot force generating mechanism when voltage is applied to the solenoid; And
Further comprising a stopper coupled to the push rod;
An intelligent accelerator pedal device for a hybrid vehicle, characterized in that when the push rod protrudes, the stopper moves downward of the foot force generating mechanism to contact the foot force generating mechanism. The method according to claim 1,
The stepping force generating mechanism and the stopper are formed with inclined surfaces in contact with each other;
An intelligent accelerator pedal device for a hybrid vehicle, characterized in that the inclined surface of the stepping force generating mechanism and the inclined surface of the stopper contact each other when the push rod protrudes. The method according to claim 1,
Each of the stepping force generating mechanism and the stopper is formed with an inclined surface;
The inclined surface of the step-force generating mechanism and the inclined surface of the stopper are formed with irregularities for preventing slipping, respectively;
An intelligent accelerator pedal device for a hybrid vehicle, characterized in that the unevenness formed on the inclined surface of the stepping force generating mechanism and the unevenness formed on the inclined surface of the stopper contact each other during the protruding operation of the push rod. The method according to claim 1,
A spring plate coupled to one end of the push rod; And
An intelligent accelerator pedal device for a hybrid vehicle, further comprising: a return spring that is installed to support both ends of the solenoid and the spring plate and moves the push rod retreat through an elastic restoring force when the voltage of the solenoid is cut off. The method according to claim 1,
The foot force generating mechanism is a fixed housing connected to the pedal pad and formed to have an open bottom;
A movable housing which is partially inserted into the fixed housing and is movable along the longitudinal direction of the fixed housing, opens upward, and has an inclined bottom surface; And
And a foot spring installed to be located inside the fixed housing and the moving housing to provide an elastic force so that the moving housing protrudes from the fixed housing. The method of claim 5,
The pedal force generating mechanism includes a damper coupled to an upper portion of the fixed housing; And
Further comprising a spring support block installed below the inside of the movable housing;
The foot spring is an intelligent accelerator pedal device for a hybrid vehicle, characterized in that installed to support both ends of the damper and the spring support block. The method according to claim 1,
The step force generating mechanism transmits a tactile signal according to an increase in foot force to the driver upon contact with the stopper, and performs a function of a kick-down switch by contacting the pedal housing when the stopper is not in contact with the intelligent accelerator pedal for hybrid vehicles. Device. An operation control method of an intelligent accelerator pedal device for a hybrid vehicle using the device of any one of claims 1 to 6,
A first determination step of determining whether the drive mode is an eco mode in a driving situation in the EV mode;
A second judgment step of determining a time point of transition from the EV mode to the HEV mode in the eco mode;
A third judging step of determining whether the stroke of the accelerator pedal is within the normal operating range at the time of switching from the EV mode to the HEV mode; And
When it is determined that the stroke of the accelerator pedal is within the normal operating range, a voltage is applied to the solenoid so that the stopper comes into contact with the foot force generating mechanism, thereby increasing the foot force that transmits the increased foot force to the driver as a tactile signal when the driver's pedal pad is operated. Step; operation control method of the intelligent accelerator pedal device for a hybrid vehicle comprising a. The method of claim 8,
In the second determination step, the HCU determines a time point of transition from the EV mode to the HEV mode;
The HCU is an intelligent accelerator pedal for a hybrid vehicle, characterized in that the HCU determines from the point when the engine starts to be switched to the HEV mode or from the point immediately before the engine starts to be the point to switch to the HEV mode. How to control the operation of the device. The method of claim 8,
In the third determination step, the stroke of the accelerator pedal is determined using the signal of the APS;
If the stroke of the accelerator pedal is in the range of 10% to 70%, it is determined as a normal operating range;
If the stroke of the accelerator pedal is less than 10% or exceeds 70%, it is determined as an abnormal operation range;
An operation control method of an intelligent accelerator pedal device for a hybrid vehicle, characterized in that no voltage is applied to the solenoid when it is determined as the abnormal operation range. The method of claim 8,
And a fourth determination step of determining a stroke of the accelerator pedal after the step of increasing the foot pressure;
When it is determined that the stroke of the accelerator pedal is reduced in the fourth determination step, control is performed so that no voltage is applied to the solenoid while maintaining the driving in the EV mode;
When it is determined in the fourth judgment step that the stroke of the accelerator pedal is maintained or increased, the operation control of an intelligent accelerator pedal device for a hybrid vehicle, characterized in that the EV mode is changed to the HEV mode and the voltage is continuously applied to the solenoid. Way.

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